Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Microchip Technology/ATSAMV71J20/USART0/US_LINBRR#0x0
LIN Baud Rate Register
Clock Divider after Synchronization
Fractional Part after Synchronization
https://github.com/cmsis-svd/cmsis-svd-data